公开(公告)号：DE3502690A1

公开(公告)日：1986-07-31

申请号：DE3502690

申请日：1985-01-26

Applicant: BASF AG

Inventor： RULAND ALFRED DR ,  REUTHER WOLFGANG DR ,  SCHOEPPL HUBERT DR ,  PAULUS GERHARD DR ,  BOEHM WALTER DR ,  REXROTH ERHARD DR ,  QUEINS HUBERTUS DR

IPC: C07D215/06 ,  C08G12/00 ,  C08F34/00

公开(公告)号：DE3161899D1

公开(公告)日：1984-02-16

申请号：DE3161899

申请日：1981-10-24

Applicant: BASF AG

Inventor： HUSSLEIN GERD DR ,  HAMPRECHT GERHARD DR ,  KOENIG KARL-HEINZ DR ,  BOEHM WALTER DR ,  GAENG MANFRED DR

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：CS8109668A2

公开(公告)日：1985-07-16

申请号：CS966881

申请日：1981-12-22

Applicant: BASF AG

Inventor： HUSSLEIN GERD DR ,  HAMPRECHT GERHARD DR ,  KOENIG KARL HEINZ DR ,  BOEHM WALTER DR ,  GAENG MANFRED DR

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C67/00 ,  C07C57/32

CPC classification number: C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C59/68

公开(公告)号：GR75381B

公开(公告)日：1984-07-13

申请号：GR810166410

申请日：1981-11-03

Applicant: BASF AG

Inventor： HUSSLEIN GERD DR ,  HAMPRECHT GERHARD DR ,  KOENIG KARL-HEINZ DR ,  BOEHM WALTER DR ,  GAENG MANFRED DR

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：CS966881A2

公开(公告)日：1985-07-16

申请号：CS966881

申请日：1981-12-22

Applicant: BASF AG

Inventor： HUSSLEIN GERD DR ,  HAMPRECHT GERHARD DR ,  KOENIG KARL HEINZ DR ,  BOEHM WALTER DR ,  GAENG MANFRED DR

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00 ,  C07C57/32

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：DE3560360D1

公开(公告)日：1987-08-27

申请号：DE3560360

申请日：1985-09-07

Applicant: BASF AG

Inventor： BOTT KASPAR DR ,  BOEHM WALTER DR ,  FRITZ GERHARD DR ,  MARTIN CHRISTOPH DR ,  SIEGEL HARDO DR

IPC: C12P7/62 ,  C07C59/08 ,  C07C67/00 ,  C07C67/08 ,  C07C69/68

公开(公告)号：DE3433400A1

公开(公告)日：1986-03-20

申请号：DE3433400

申请日：1984-09-12

Applicant: BASF AG

Inventor： BOTT KASPAR DR ,  BOEHM WALTER DR ,  FRITZ GERHARD DR ,  MARTIN CHRISTOPH DR ,  SIEGEL HARDO DR

IPC: C12P7/62 ,  C07C59/08 ,  C07C67/00 ,  C07C67/08 ,  C07C69/68

公开(公告)号：DE3164128D1

公开(公告)日：1984-07-19

申请号：DE3164128

申请日：1981-05-05

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ DR ,  BOEHM WALTER DR ,  WEBERNDOERFER VOLKMAR DR

IPC: B04B5/10 ,  C07C67/00 ,  C07C301/00 ,  C07C303/32 ,  C07C303/42 ,  C07C303/44 ,  C07C309/28 ,  C07C309/35 ,  C07C309/40 ,  C07D221/10 ,  C09B69/04 ,  C07C139/14 ,  C07C143/30 ,  C07C143/55

公开(公告)号：DE2301638A1

公开(公告)日：1974-08-01

申请号：DE2301638

申请日：1973-01-13

Applicant: BASF AG

Inventor： BOEHM WALTER DR ,  DAUBACH EWALD DR ,  HERRMANN MANFRED DR ,  WEISER DIETER DR ,  WINDEL HERMANN DR

IPC: C08G8/00 ,  C08G8/28 ,  C09B67/46 ,  D06P1/16 ,  C08G5/06

公开(公告)号：DE2000509A1

公开(公告)日：1971-07-15

申请号：DE2000509

申请日：1970-01-07

Applicant: BASF AG

Inventor： BOEHM WALTER DR ,  KROENER MICHAEL DR ,  OSTER RUDOLF DR

IPC: B01J23/06 ,  B01J27/02 ,  B01J27/10 ,  C07C255/24 ,  C09B29/08 ,  C09B29/26 ,  C07C121/00